AR15 U.S.A. Made Lower Parts Kit Features TacFire AR15 U.S.A. Made Lower Parts Kit/No Grip Included AR15 U.S.A. Made Lower Parts Kit Specifications (1) Trigger (1) Trigger Pin (1) Trigger Spring (1) Trigger Guard (1) Hammer (1) Hammer Spring (1) Hammer Pin (1) Bolt Catch Roll Pin (1) Bolt Catch Spring (1) Detent Spring (1) Bolt Catch Plunger (1) Take Down Detent (1) Bolt Catch (1) Magazine Catch Spring (1) Magazine Catch Button (1) Magazine Catch (1) Front Pivot Pin (1) Detent Selector (1) Take Down Pin (1) Buffer Retainer Pin (1) Buffer Retainer Spring (1) Disconnector Spring (1) Disconnector (1) Selector (1) Selector Spring